What is your favourite game of ALL time?

Mine has to be Super Smash Bros. Melee (or the series in general). So much hype. I've been around the competitive scene in locals since the game's early days and now it's bustling larger than ever. The new installments in the series bring so much hype, especially being a Fire Emblem die-hard fan. It's fun in all ways, but Melee by far has brought me some of the most competitive stimulation I've had in gaming.
My second favorite has to be Minecraft. There's so much to do, and so much to experience. It gets even better in private multiplayer with friends. Not only that, but the sandbox game is basically a sandbox game engine for plugin coders and mod creators. There's endless fun in this game, you just need to know where to look and think outside of the blocks.